Phase-encoded fMRI tracks down brainstorms of natural language processing with sub-second precision.

ABSTRACT: The human language system interacts with cognitive and sensorimotor regions during natural language processing. However, where, when, and how these processes occur remain unclear. Existing noninvasive subtraction-based neuroimaging techniques cannot simultaneously achieve the spatial and temporal resolutions required to visualize ongoing information flows across the whole brain. Here we have developed phase-encoded designs to fully exploit the temporal information latent in functional magnetic resonance imaging (fMRI) data, as well as overcoming scanner noise and head-motion challenges during overt language tasks. We captured neural information flows as coherent waves traveling over the cortical surface during listening, reciting, and oral cross-language interpreting. The timing, location,

SUBMITTER: Lei VLC 

PROVIDER: S-EPMC10312422 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature